Ring Button Group

This package provides a configurable component to support a group of buttons displayed on a sized ring.

Features

Getting started

flutter pub add ring_button_group

or manually add this to your package's pubspec.yaml file:

...
dependencies:
  ring_button_group: ^1.0.0

Now in your Dart code, you can use:

import 'package:ring_button_group/ring_button_group.dart';

Usage

SizedBox(
    width: 200, //set a width
    height: 200, //set a height, should be same with width
    child: RingButtonGroup(
      buttonNumber: 5, //total number of buttons in group
      icons: const [ //a list of icons displayed on button
        Icon(Icons.abc, color: Colors.white,),
        Icon(Icons.baby_changing_station, color: Colors.white,),
        Icon(Icons.cabin, color: Colors.white,),
        Icon(Icons.dangerous, color: Colors.white,),
        Icon(Icons.e_mobiledata, color: Colors.white,),
      ],
      type: RingButtonGroupType.MULTIPLE_SELECTABLE, // allow multiple select
      pressedIndex: const {1}, //default selected buttons index, start from 0
      shadowEffect: true,
      onPressed: (index, allSelected) {  },
    ),
  ),
)

RingButtonGroup Attributes

Attribute	Type	Default	Annotation
buttonNumber	int		total number of buttons in this group, must be greater than 1
pressedIndex	Set	{}	a list of indexes of button which should be pressed when rendering, index starts from 0
onPressed	OnPressedFunction?	null	Function(int index, Set
disabled	bool	false	navigation buttons of BottomBarWithSheet
buttonSize	double	40	the size of button, it identifies the radius of the circle
toneColor	Color	Colors.blueAccent	main color of the button
tintColor	Color	Colors.blueGrey	button color while pressing down
activeColor	Color	Colors.lightBlueAccent	button color after pressed
borderColor	Color	Colors.lightBlueAccent	button border color
disableColor	Color	Colors.blueAccent	disabled main color, when color same with toneColor, auto transform to grayscale
disableBorderColor	Color	Colors.lightBlueAccent	disabled border color, when color same with borderColor, auto transform to grayscale
icons	List	null	button icons list, while set, the list length must be same with buttonNumber
labels	List	null	button label list, only works when icons is null, the list length must be same with buttonNumber
child	Widget?	null	a child of ring button, common case is put a circle in the center for display purpose
shadowEffect	bool	false	use a inner shadow effects in pressed/selected button
splitStrokeSize	double	0.5	the width of line split the button, note that this is not the border of circle

RingButtonGroupType

type	description
PRESS_ONLY	such type only allow press action, but will not stay in pressed/selected state
SINGLE_SELECTABLE	only allow one of buttons stay in pressed/selected state, like a radio box
MULTIPLE_SELECTABLE	allow multiple pressed like a checkbox

Example

to /example folder.

you can find the example show in screenshot from file: ./example/lib/main/dart

Run example in your simulator or device

flutter run

Additional information

when you using this ring button group, this widget should be contained by a SizedBox or similar widget with width and height properties, and must be a square - with same value in width and height, the widget itself is stretched.